<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<canvas id="myCanvas" >

</canvas>

<script type="text/javascript">

var c=document.getElementById("myCanvas");
var cxt=c.getContext("2d");
cxt.fillStyle="red";
cxt.beginPath();
cxt.arc(100,100,40,0,Math.PI*2,true);
cxt.closePath();
cxt.fill();

</script>


	</body>
</html>
